chrome/utility/importer/nss_decryptor_win.h

   1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_UTILITY_IMPORTER_NSS_DECRYPTOR_WIN_H_
   6 #define CHROME_UTILITY_IMPORTER_NSS_DECRYPTOR_WIN_H_
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/basictypes.h"
  12 #include "base/native_library.h"
  13 #include "base/strings/string16.h"
  14
  15 // The following declarations of functions and types are from Firefox
  16 // NSS library.
  17 // source code:
  18 //   security/nss/lib/util/seccomon.h
  19 //   security/nss/lib/nss/nss.h
  20 // The license block is:
  21
  22 /* ***** BEGIN LICENSE BLOCK *****
  23 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
  24 *
  25 * The contents of this file are subject to the Mozilla Public License Version
  26 * 1.1 (the "License"); you may not use this file except in compliance with
  27 * the License. You may obtain a copy of the License at
  28 * http://www.mozilla.org/MPL/
  29 *
  30 * Software distributed under the License is distributed on an "AS IS" basis,
  31 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  32 * for the specific language governing rights and limitations under the
  33 * License.
  34 *
  35 * The Original Code is the Netscape security libraries.
  36 *
  37 * The Initial Developer of the Original Code is
  38 * Netscape Communications Corporation.
  39 * Portions created by the Initial Developer are Copyright (C) 1994-2000
  40 * the Initial Developer. All Rights Reserved.
  41 *
  42 * Contributor(s):
  43 *
  44 * Alternatively, the contents of this file may be used under the terms of
  45 * either the GNU General Public License Version 2 or later (the "GPL"), or
  46 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  47 * in which case the provisions of the GPL or the LGPL are applicable instead
  48 * of those above. If you wish to allow use of your version of this file only
  49 * under the terms of either the GPL or the LGPL, and not to allow others to
  50 * use your version of this file under the terms of the MPL, indicate your
  51 * decision by deleting the provisions above and replace them with the notice
  52 * and other provisions required by the GPL or the LGPL. If you do not delete
  53 * the provisions above, a recipient may use your version of this file under
  54 * the terms of any one of the MPL, the GPL or the LGPL.
  55 *
  56 * ***** END LICENSE BLOCK ***** */
  57
  58 enum SECItemType {
  59   siBuffer = 0,
  60   siClearDataBuffer = 1,
  61   siCipherDataBuffer = 2,
  62   siDERCertBuffer = 3,
  63   siEncodedCertBuffer = 4,
  64   siDERNameBuffer = 5,
  65   siEncodedNameBuffer = 6,
  66   siAsciiNameString = 7,
  67   siAsciiString = 8,
  68   siDEROID = 9,
  69   siUnsignedInteger = 10,
  70   siUTCTime = 11,
  71   siGeneralizedTime = 12
  72 };
  73
  74 struct SECItem {
  75   SECItemType type;
  76   unsigned char *data;
  77   unsigned int len;
  78 };
  79
  80 enum SECStatus {
  81   SECWouldBlock = -2,
  82   SECFailure = -1,
  83   SECSuccess = 0
  84 };
  85
  86 typedef int PRBool;
  87 #define PR_TRUE 1
  88 #define PR_FALSE 0
  89
  90 typedef enum { PR_FAILURE = -1, PR_SUCCESS = 0 } PRStatus;
  91
  92 typedef struct PK11SlotInfoStr PK11SlotInfo;
  93
  94 typedef SECStatus (*NSSInitFunc)(const char *configdir);
  95 typedef SECStatus (*NSSShutdownFunc)(void);
  96 typedef PK11SlotInfo* (*PK11GetInternalKeySlotFunc)(void);
  97 typedef void (*PK11FreeSlotFunc)(PK11SlotInfo *slot);
  98 typedef SECStatus (*PK11CheckUserPasswordFunc)(PK11SlotInfo *slot, char *pw);
  99 typedef SECStatus
 100     (*PK11AuthenticateFunc)(PK11SlotInfo *slot, PRBool loadCerts, void *wincx);
 101 typedef SECStatus
 102     (*PK11SDRDecryptFunc)(SECItem *data, SECItem *result, void *cx);
 103 typedef void (*SECITEMFreeItemFunc)(SECItem *item, PRBool free_it);
 104 typedef void (*PLArenaFinishFunc)(void);
 105 typedef PRStatus (*PRCleanupFunc)(void);
 106
 107 namespace autofill {
 108 struct PasswordForm;
 109 }
 110
 111 // A wrapper for Firefox NSS decrypt component.
 112 class NSSDecryptor {
 113  public:
 114   NSSDecryptor();
 115   ~NSSDecryptor();
 116
 117   // Loads NSS3 library and returns true if successful.
 118   // |dll_path| indicates the location of NSS3 DLL files, and |db_path|
 119   // is the location of the database file that stores the keys.
 120   bool Init(const base::FilePath& dll_path, const base::FilePath& db_path);
 121
 122   // Frees the libraries.
 123   void Free();
 124
 125   // Decrypts Firefox stored passwords. Before using this method,
 126   // make sure Init() returns true.
 127   base::string16 Decrypt(const std::string& crypt) const;
 128
 129   // Parses the Firefox password file content, decrypts the
 130   // username/password and reads other related information.
 131   // The result will be stored in |forms|.
 132   void ParseSignons(const std::string& content,
 133                     std::vector<autofill::PasswordForm>* forms);
 134
 135   // Reads and parses the Firefox password sqlite db, decrypts the
 136   // username/password and reads other related information.
 137   // The result will be stored in |forms|.
 138   bool ReadAndParseSignons(const base::FilePath& sqlite_file,
 139                            std::vector<autofill::PasswordForm>* forms);
 140
 141  private:
 142   // Call NSS initialization funcs.
 143   bool InitNSS(const base::FilePath& db_path,
 144                base::NativeLibrary plds4_dll,
 145                base::NativeLibrary nspr4_dll);
 146
 147   PK11SlotInfo* GetKeySlotForDB() const { return PK11_GetInternalKeySlot(); }
 148   void FreeSlot(PK11SlotInfo* slot) const { PK11_FreeSlot(slot); }
 149
 150   // Methods in Firefox security components.
 151   NSSInitFunc NSS_Init;
 152   NSSShutdownFunc NSS_Shutdown;
 153   PK11GetInternalKeySlotFunc PK11_GetInternalKeySlot;
 154   PK11CheckUserPasswordFunc PK11_CheckUserPassword;
 155   PK11FreeSlotFunc PK11_FreeSlot;
 156   PK11AuthenticateFunc PK11_Authenticate;
 157   PK11SDRDecryptFunc PK11SDR_Decrypt;
 158   SECITEMFreeItemFunc SECITEM_FreeItem;
 159   PLArenaFinishFunc PL_ArenaFinish;
 160   PRCleanupFunc PR_Cleanup;
 161
 162   // Libraries necessary for decrypting the passwords.
 163   static const wchar_t kNSS3Library[];
 164   static const wchar_t kSoftokn3Library[];
 165   static const wchar_t kPLDS4Library[];
 166   static const wchar_t kNSPR4Library[];
 167
 168   // NSS3 module handles.
 169   base::NativeLibrary nss3_dll_;
 170   base::NativeLibrary softokn3_dll_;
 171
 172   // True if NSS_Init() has been called
 173   bool is_nss_initialized_;
 174
 175   DISALLOW_COPY_AND_ASSIGN(NSSDecryptor);
 176 };
 177
 178 #endif  // CHROME_UTILITY_IMPORTER_NSS_DECRYPTOR_WIN_H_